Right Upper Quadrant (RUQ)
liver - gallbladder - duodenum - a small portion of the pancreas - jejunum
Left Upper Quadrant (LUQ):
Stomach - Spleen
Right Lower Quadrant (RLQ)
large intestine - small intestine - appendix - ileum
Left Lower Quadrant (LLQ)
The descending colon - The left half of the transverse colon - Sigmoid colon - Rectum